Huawei Childrens Watch 4X vs Lava Z91
Huawei Childrens Watch 4X
Lava Z91
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Network
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2G networkGSM 900, 1800GSM 900, 1800
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3G networkHSDPA 2100HSDPA 900, 2100
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4G networkLTE frequency band 1, 3, 7, 8, 38, 40 - Europe, Central Asia; LTE frequency band 2, 5, 7, 41 - North America; LTE frequency band 2, 3, 5, 7, 38, 41 - LATAM; LTE frequency band 1, 3, 5, 7, 8, 38, 40 - Asia PacificLTE frequency band 1(2100), 3(1800), 5(850), 40(2300), 41(2500)
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRS-Yes
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EDGE-Yes
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Availability
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Oficially announced2020-072018-3
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Status2020-082018-3
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Design
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Build-Plastic, metal
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SIMNano-SIMDual SIM (Nano-SIM, dual stand-by)
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Height45.7 mm152 mm
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Width53 mm72.9 mm
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Thickness14.7 mm7.7 mm
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Weight67.7 g147 g
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Waterproof50 m-
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ColorsBlue, Pink, WhiteBlue
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Display
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Display typeAMOLED capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size1.41 inches5.7 inches
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Resolution320 x 360 pixels720 x 1440 pixels
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Pixel density342 ppi282 ppi
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Display colors1677721616777216
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Protection-2.5D curved glass screen
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Multitouch-Yes, max 5 fingers
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A53
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Chipset-Mediatek MT6739
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GPU-PowerVR GE8100
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Memory RAM1 GB3 GB
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Internal storage16 GB32 GB
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Memory cardNomicroSD
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Memory card max-128 GB
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OS
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OSHuawei wearable platformAndroid 7.1 (Nougat)
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Sound
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3.5mm jackNoYes
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LoudspeakerNoYes
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Notifications-Vibration; MP3, WAV ringtones
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Earpiece-Yes
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Multimedia
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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANYesWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBNomicroUSB 2.0
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Bluetooth-v4.0
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Bluetooth A2DP-Yes
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GPSYes, with dual-band A-GPSYes, with A-GPS
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GLONASSYes-
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GALILEOYes-
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QZSSYes-
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GNSSYes-
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging Email-Email
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Messaging IM-IM
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SensorsAccelerometer, gyroFingerprint (rear-mounted), accelerometer, proximity
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity800 mAh3000 mAh
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Battery removableNon-removableNon-removable
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Wireless chargingYes (50% in 20 min)-
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Cost
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Price200 USD-
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Main camera
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Main camera13 MP, f/2.0 , 1.12 µm
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Primary camera resolution-4160 x 3120 pixels
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Primary camera video-1080p@30fps
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Primary camera Autofocus-autofocus
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Camera features-Geo-tagging, face detection, touch focus
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Selfie camera
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Flash-LED flash
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Selfie camera8 MP, f/2.2
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Selfie camera resolution-3264 x 2448 pixels
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Browser
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HTML-Yes
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